On-line fault diagnosis and fault-tolerant operation of modular multilevel converters—A comprehensive review

JB He, Q Yang, Z Wang - CES Transactions on Electrical …, 2020 - ieeexplore.ieee.org
Modular multilevel converters (MMCs) have been one of the most broadly used multilevel
converter topologies in industrial applications, particularly in medium-voltage motor drives …

Modular multilevel converter-based microgrid: A critical review

SB Bashir, AAA Ismail, A Elnady, MM Farag… - IEEE …, 2023 - ieeexplore.ieee.org
Recently, the Modular Multilevel Converter (MMC) has drawn significant attention due to its
diverse merits and its applicability to a wide range of medium to high-power applications …

Review of fault diagnosis and fault-tolerant control methods of the modular multilevel converter under submodule failure

Q Xiao, Y Jin, H Jia, Y Tang… - … on Power Electronics, 2023 - ieeexplore.ieee.org
Modular multilevel converters (MMCs) have attracted extensive research interests in various
ac and dc conversion applications due to their modular structure and excellent harmonic …

A novel detection and localization approach of open-circuit switch fault for the grid-connected modular multilevel converter

Y Jin, Q Xiao, H Jia, Y Ji, T Dragičević… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
The open-circuit fault detection and localization (FDL) technique can improve the reliability
of the modular multilevel converter (MMC). However, the conventional software-based FDL …

Submodule voltage similarity-based open-circuit fault diagnosis for modular multilevel converters

D Zhou, H Qiu, S Yang, Y Tang - IEEE Transactions on Power …, 2018 - ieeexplore.ieee.org
Fault diagnosis is indispensable for the reliable operation of modular multilevel converters
(MMCs). This paper presents a submodule voltage similarity-based, real-time, and fast open …

DC fault current clearance at the source side of HVDC grid using hybrid MMC

J Xu, X Zhao, H Jing, J Liang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This paper proposes a source-side DC fault current clearance scheme for HVDC grids under
DC short-circuit faults. The scheme uses half-bridge submodules (HBSM) and full-bridge …

Fault diagnosis and monitoring of modular multilevel converter with fast response of voltage sensors

J Zhang, X Hu, S Xu, Y Zhang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Modular multilevel converter (MMC) has been one of the most popular candidates in high-
voltage applications. However, reliability is a critical issue due to a large number of power …

Fault localization strategy for modular multilevel converters under submodule lower switch open-circuit fault

C Liu, F Deng, Q Heng, R Zhu, M Liserre… - … on Power Electronics, 2019 - ieeexplore.ieee.org
The modular multilevel converter (MMC) is an attractive option for high-voltage and high-
power applications. Fault localization is one of the most important challenges for the MMC …

A concurrent diagnosis method of IGBT open-circuit faults in modular multilevel converters

H Jia, Y Deng, X Hu, Z Deng… - IEEE Journal of Emerging …, 2022 - ieeexplore.ieee.org
The insulated-gate bipolar transistor (IGBT) is one of the most vulnerable components in the
modular multilevel converter (MMC). One or more IGBT open-circuit faults may deteriorate …

An open-set fault diagnosis framework for MMCs based on optimized temporal convolutional network

Q Guo, J Li, F Zhou, G Li, J Lin - Applied Soft Computing, 2023 - Elsevier
Reliability of the modular multilevel converters (MMCs) provides a vital guarantee for the
uninterrupted operation of a system. Insulated Gate Bipolar Transistors (IGBTs) open circuit …